orcus | a8d074e0eb0c8d47e9fbcf613305b0341e429f17189876578ed1ff9b6c806260

Analysis

max time kernel
150s
max time network
152s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
02-02-2025 01:07

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General

Target

a8d074e0eb0c8d47e9fbcf613305b0341e429f17189876578ed1ff9b6c806260.exe
Size

923KB
MD5

dfa6c3b167e13bdfd21228ecf39e48ab
SHA1

eb8f00ab96185b2592f197a340b0827738aa3c38
SHA256

a8d074e0eb0c8d47e9fbcf613305b0341e429f17189876578ed1ff9b6c806260
SHA512

30f4dcd5564def85372716a86755897c9f2ec3c336140080a0add1487e04ffc022ed696d7d9ed751f65a73905f4579f27849df29ccb5ceedd7271466ca0cbf6c
SSDEEP

24576:Jj54MROxnF438ErrcI0AilFEvxHPaoo/:J6MiGHrrcI0AilFEvxHP

Score

10^/10

orcus discovery persistence rat spyware stealer

Malware Config

Extracted

Family

orcus

193.161.193.99:38140

Mutex

0a90560fd1de4ef0859fc02bececce78

Attributes

autostart_method
Registry
enable_keylogger
true
install_path
%programfiles%\svhost\svhost.exe
reconnect_delay
10000
registry_keyname
Orcus
taskscheduler_taskname
Orcus
watchdog_path
AppData\svhost.exe

Signatures

Orcus
Orcus is a Remote Access Trojan that is being sold on underground forums.
rat spyware stealer orcus
Orcus family
orcus

Orcus main payload 1 IoCs

resource	yara_rule
behavioral1/files/0x00060000000193c7-27.dat	family_orcus

Orcurs Rat Executable 3 IoCs

resource	yara_rule
behavioral1/memory/2904-1-0x00000000009D0000-0x0000000000ABC000-memory.dmp	orcus
behavioral1/files/0x00060000000193c7-27.dat	orcus
behavioral1/memory/1992-34-0x0000000000290000-0x000000000037C000-memory.dmp	orcus

Executes dropped EXE 6 IoCs

pid	Process
2172	WindowsInput.exe
2308	WindowsInput.exe
1992	svhost.exe
2188	svhost.exe
2180	svhost.exe
3060	svhost.exe

Loads dropped DLL 3 IoCs

pid	Process
2904	a8d074e0eb0c8d47e9fbcf613305b0341e429f17189876578ed1ff9b6c806260.exe
2904	a8d074e0eb0c8d47e9fbcf613305b0341e429f17189876578ed1ff9b6c806260.exe
1992	svhost.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\Orcus = "\"C:\\Program Files (x86)\\svhost\\svhost.exe\""	svhost.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\WindowsInput.exe	a8d074e0eb0c8d47e9fbcf613305b0341e429f17189876578ed1ff9b6c806260.exe
File created	C:\Windows\SysWOW64\WindowsInput.exe.config	a8d074e0eb0c8d47e9fbcf613305b0341e429f17189876578ed1ff9b6c806260.exe
File created	C:\Windows\SysWOW64\WindowsInput.InstallState	WindowsInput.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\svhost\svhost.exe	a8d074e0eb0c8d47e9fbcf613305b0341e429f17189876578ed1ff9b6c806260.exe
File opened for modification	C:\Program Files (x86)\svhost\svhost.exe	a8d074e0eb0c8d47e9fbcf613305b0341e429f17189876578ed1ff9b6c806260.exe
File created	C:\Program Files (x86)\svhost\svhost.exe.config	a8d074e0eb0c8d47e9fbcf613305b0341e429f17189876578ed1ff9b6c806260.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a8d074e0eb0c8d47e9fbcf613305b0341e429f17189876578ed1ff9b6c806260.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svhost.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1992	svhost.exe
1992	svhost.exe
1992	svhost.exe
3060	svhost.exe
3060	svhost.exe
3060	svhost.exe
1992	svhost.exe
3060	svhost.exe
1992	svhost.exe
3060	svhost.exe
1992	svhost.exe
3060	svhost.exe
1992	svhost.exe
3060	svhost.exe
1992	svhost.exe
3060	svhost.exe
1992	svhost.exe
3060	svhost.exe
1992	svhost.exe
3060	svhost.exe
1992	svhost.exe
3060	svhost.exe
1992	svhost.exe
3060	svhost.exe
1992	svhost.exe
3060	svhost.exe
1992	svhost.exe
3060	svhost.exe
1992	svhost.exe
3060	svhost.exe
1992	svhost.exe
3060	svhost.exe
1992	svhost.exe
3060	svhost.exe
1992	svhost.exe
3060	svhost.exe
1992	svhost.exe
3060	svhost.exe
1992	svhost.exe
3060	svhost.exe
1992	svhost.exe
3060	svhost.exe
1992	svhost.exe
3060	svhost.exe
1992	svhost.exe
3060	svhost.exe
1992	svhost.exe
3060	svhost.exe
1992	svhost.exe
3060	svhost.exe
1992	svhost.exe
3060	svhost.exe
1992	svhost.exe
3060	svhost.exe
1992	svhost.exe
3060	svhost.exe
1992	svhost.exe
3060	svhost.exe
1992	svhost.exe
3060	svhost.exe
1992	svhost.exe
3060	svhost.exe
1992	svhost.exe
3060	svhost.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1992	svhost.exe
Token: SeDebugPrivilege	2180	svhost.exe
Token: SeDebugPrivilege	3060	svhost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1992	svhost.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2904 wrote to memory of 2172	2904	a8d074e0eb0c8d47e9fbcf613305b0341e429f17189876578ed1ff9b6c806260.exe	31
PID 2904 wrote to memory of 2172	2904	a8d074e0eb0c8d47e9fbcf613305b0341e429f17189876578ed1ff9b6c806260.exe	31
PID 2904 wrote to memory of 2172	2904	a8d074e0eb0c8d47e9fbcf613305b0341e429f17189876578ed1ff9b6c806260.exe	31
PID 2904 wrote to memory of 2172	2904	a8d074e0eb0c8d47e9fbcf613305b0341e429f17189876578ed1ff9b6c806260.exe	31
PID 2904 wrote to memory of 1992	2904	a8d074e0eb0c8d47e9fbcf613305b0341e429f17189876578ed1ff9b6c806260.exe	33
PID 2904 wrote to memory of 1992	2904	a8d074e0eb0c8d47e9fbcf613305b0341e429f17189876578ed1ff9b6c806260.exe	33
PID 2904 wrote to memory of 1992	2904	a8d074e0eb0c8d47e9fbcf613305b0341e429f17189876578ed1ff9b6c806260.exe	33
PID 2904 wrote to memory of 1992	2904	a8d074e0eb0c8d47e9fbcf613305b0341e429f17189876578ed1ff9b6c806260.exe	33
PID 2472 wrote to memory of 2188	2472	taskeng.exe	35
PID 2472 wrote to memory of 2188	2472	taskeng.exe	35
PID 2472 wrote to memory of 2188	2472	taskeng.exe	35
PID 2472 wrote to memory of 2188	2472	taskeng.exe	35
PID 1992 wrote to memory of 2180	1992	svhost.exe	36
PID 1992 wrote to memory of 2180	1992	svhost.exe	36
PID 1992 wrote to memory of 2180	1992	svhost.exe	36
PID 1992 wrote to memory of 2180	1992	svhost.exe	36
PID 2180 wrote to memory of 3060	2180	svhost.exe	37
PID 2180 wrote to memory of 3060	2180	svhost.exe	37
PID 2180 wrote to memory of 3060	2180	svhost.exe	37
PID 2180 wrote to memory of 3060	2180	svhost.exe	37

C:\Users\Admin\AppData\Local\Temp\a8d074e0eb0c8d47e9fbcf613305b0341e429f17189876578ed1ff9b6c806260.exe
"C:\Users\Admin\AppData\Local\Temp\a8d074e0eb0c8d47e9fbcf613305b0341e429f17189876578ed1ff9b6c806260.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2904
- C:\Windows\SysWOW64\WindowsInput.exe
  "C:\Windows\SysWOW64\WindowsInput.exe" --install
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  PID:2172
- C:\Program Files (x86)\svhost\svhost.exe
  "C:\Program Files (x86)\svhost\svhost.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1992
- - C:\Users\Admin\AppData\Roaming\svhost.exe
    "C:\Users\Admin\AppData\Roaming\svhost.exe" /launchSelfAndExit "C:\Program Files (x86)\svhost\svhost.exe" 1992 /protectFile
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2180
  - - C:\Users\Admin\AppData\Roaming\svhost.exe
      "C:\Users\Admin\AppData\Roaming\svhost.exe" /watchProcess "C:\Program Files (x86)\svhost\svhost.exe" 1992 "/protectFile"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3060

C:\Windows\SysWOW64\WindowsInput.exe
"C:\Windows\SysWOW64\WindowsInput.exe"
1⤵
- Executes dropped EXE
PID:2308

C:\Windows\system32\taskeng.exe
taskeng.exe {D02F9607-F56C-4491-A612-81AE88881421} S-1-5-21-3692679935-4019334568-335155002-1000:BCXRJFKE\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2472
- C:\Program Files (x86)\svhost\svhost.exe
  "C:\Program Files (x86)\svhost\svhost.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2188

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\svhost.exe

Filesize
9KB

MD5
913967b216326e36a08010fb70f9dba3

SHA1
7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf

SHA256
8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a

SHA512
c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

Download Submit
C:\Users\Admin\AppData\Roaming\svhost\err_0a90560fd1de4ef0859fc02bececce78.dat

Filesize
1KB

MD5
d648eb8a15527bf05c29beab26d33945

SHA1
cf39f2b84c390dc4d89655f65bafc54930f37e68

SHA256
61e4eeb7149de81325356c870e3cf0b96c89dc523405d6f3cf239fab69f7b551

SHA512
a61e5c888b834fb73eb34a01fe191dff98e3615e90b452b8c0f987cf2143cf8b7137f8e51ef73c532d2ead56d2c7841d874169dc3d4df8850b36f3e96a40b561

Download Submit
C:\Windows\SysWOW64\WindowsInput.exe.config

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

Download Submit
\Program Files (x86)\svhost\svhost.exe

Filesize
923KB

MD5
dfa6c3b167e13bdfd21228ecf39e48ab

SHA1
eb8f00ab96185b2592f197a340b0827738aa3c38

SHA256
a8d074e0eb0c8d47e9fbcf613305b0341e429f17189876578ed1ff9b6c806260

SHA512
30f4dcd5564def85372716a86755897c9f2ec3c336140080a0add1487e04ffc022ed696d7d9ed751f65a73905f4579f27849df29ccb5ceedd7271466ca0cbf6c

Download Submit
\Windows\SysWOW64\WindowsInput.exe

Filesize
21KB

MD5
e6fcf516d8ed8d0d4427f86e08d0d435

SHA1
c7691731583ab7890086635cb7f3e4c22ca5e409

SHA256
8dbe814359391ed6b0b5b182039008cf1d00964da9fbc4747f46242a95c24337

SHA512
c496cf8e2e222fe1e19051b291e6860f31aae39f54369c1c5e8c9758c4b56e8af904e3e536e743a0a6fdbbf8478afba4baee92e13fc1b3073376ac6bf4a7948e

Download Submit
memory/1992-39-0x0000000004420000-0x0000000004430000-memory.dmp

Filesize
64KB

Download
memory/1992-37-0x0000000002290000-0x00000000022DE000-memory.dmp

Filesize
312KB

Download
memory/1992-38-0x00000000043A0000-0x00000000043B8000-memory.dmp

Filesize
96KB

Download
memory/1992-34-0x0000000000290000-0x000000000037C000-memory.dmp

Filesize
944KB

Download
memory/2172-15-0x000007FEF56D3000-0x000007FEF56D4000-memory.dmp

Filesize
4KB

Download
memory/2172-17-0x0000000000F50000-0x0000000000F5C000-memory.dmp

Filesize
48KB

Download
memory/2172-18-0x000007FEF56D0000-0x000007FEF60BC000-memory.dmp

Filesize
9.9MB

Download
memory/2172-21-0x000007FEF56D0000-0x000007FEF60BC000-memory.dmp

Filesize
9.9MB

Download
memory/2180-50-0x0000000000AC0000-0x0000000000AC8000-memory.dmp

Filesize
32KB

Download
memory/2904-5-0x00000000006A0000-0x00000000006B2000-memory.dmp

Filesize
72KB

Download
memory/2904-33-0x0000000073DC0000-0x00000000744AE000-memory.dmp

Filesize
6.9MB

Download
memory/2904-6-0x0000000000860000-0x0000000000868000-memory.dmp

Filesize
32KB

Download
memory/2904-0-0x0000000073DCE000-0x0000000073DCF000-memory.dmp

Filesize
4KB

Download
memory/2904-4-0x0000000004260000-0x00000000042BC000-memory.dmp

Filesize
368KB

Download
memory/2904-3-0x0000000073DC0000-0x00000000744AE000-memory.dmp

Filesize
6.9MB

Download
memory/2904-2-0x0000000000430000-0x000000000043E000-memory.dmp

Filesize
56KB

Download
memory/2904-1-0x00000000009D0000-0x0000000000ABC000-memory.dmp

Filesize
944KB

Download